| ENTROPY CHARACTERISTICS OF MAGNETIC REFRIGERANTS |
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| 作者姓名： | You Lixin Guo Xianming Xu Shefa |
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| 作者单位： | Denartment of Aircraft Engineering.NUAA，29 Yudao Street.Nanjing 210016.P.R.China |
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| 摘 要： | ＥＮＴＲＯＰＹＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＭＡＧＮＥＴＩＣＲＥＦＲＩＧＥＲＡＮＴＳ￥ＹｏｕＬｉｘｉｎ；ＧｕｏＸｉａｎｍｉｎｇ；ＸｕＳｈｅｆａ（ＤｅｎａｒｔｍｅｎｔｏｆＡｉｒｃｒａｆｔＥｎｇｉｎｅｅｒｉｎｇ．ＮＵＡＡ，２９ＹｕｄａｏＳｔｒｅｅｔ．...
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ENTROPY CHARACTERISTICS OF MAGNETIC REFRIGERANTS |
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| You Lixin, Guo Xianming, Xu Shefa.ENTROPY CHARACTERISTICS OF MAGNETIC REFRIGERANTS[J].Transactions of Nanjing University of Aeronautics & Astronautics,1994(2). |
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| Authors: | You Lixin Guo Xianming Xu Shefa |
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| Abstract: | Mathematical models for predicting magnetic entropy,lattice entropy and electron entropy of magnetic refrigerants are carried out from the molecular field appoximation,the Debye model and the electron energy level theory respectively of quantum mechanics.Using theabove models the temperature and magnetic field dependences of the calculated magnetic entropy,lattice entropy,electron entropy and the total entropy of gadolinium,which is a typical magnetic refrigerant near room temperature,are obtained.The Influences of kinds of entropy on the performance of magnetic refrigeration are discussed,and some general rules for selecting magnetic refrlyerants are drawn to hely the develoyment of highly economic magnetic refrigerators. |
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| Keywords: | refrigeration cryogenics magnetic refrigerators magnetic refrigerants aeronautics aerospace |
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